Iraqi interim Prime Minister Iyad Allawi says that some top Baath Party officials of Iraq's deposed regime will go on trial next week.

Mr. Allawi made the announcement Tuesday. He did not specify which officials will appear in court, nor whether former Iraqi leader Saddam Hussein will be among them.

Speaking to Iraq's interim National Council, the Prime Minister said a top aide of wanted terrorist Abu Musab al-Zarqawi has been killed and that two others have been captured.

Mr. Allawi also said investigators have discovered a new mass grave that may contain about 500 bodies. He said the grave was found in a city northeast of Baghdad. He gave no other details about the gravesite.